· Cool lamps range from: 3,600k to 6,500k

· Neutral lamps range from: 3,000k to 3,600k

· Warm lamps range from: 2,700k to 3,000k

· Fluorescent lamps are available in Cool, Neutral, & Warm.

· Halogen lamps are considered Neutral.

· Incandescent lamps are considered Warm.


Cool for Vegging... usually around 5,500k .... Warm (or Red) for Flowering.

Neutral is what we don't want.. hence making Halogen's useless
BobBong Reviewed by BobBong on . what type of CFL i got one that is soft white does that produce the right spectrum of light Rating: 5